Multiple Choice Questions

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Cytoskeleton is made up of 

  • calcium carbonate granules

  • callose deposits

  • cellulosic microfibrils

  • cellulosic microfibrils


D.

cellulosic microfibrils

The cytoplasm of all eukaryotic cells is crisscrossed by a network of protein fibres that support the shape of the cell and anchor organelles to fixed locations. It is a dynamic system with three types of fibres-actin filaments, microtubule and intermediate filaments.

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The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because 'O' in it refers to having

  • other antigens besides A and B on RBCs

  • over dominance of this type on the genes for A and B types

  • one antibody only-either anti-A or anti- B on the RBCs

  • one antibody only-either anti-A or anti- B on the RBCs

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Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous by 

  • the absence of secondary xylem

  • the absence of secondary phloem

  • the presence of cortex

  • the presence of cortex

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Phylogenetic system of classification is based on 

  • evolutionary relationships

  • morphological features

  • chemical constituents

  • chemical constituents

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Compared to blood our Lymph has

  • no plasma

  • plasma without proteins

  • more WBCs and no RBCs

  • more WBCs and no RBCs

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Aerobic respiratory pathway is appropriately termed

  • catabolic

  • parabolic

  • amphibolic

  • amphibolic

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The floral formula  is that of

  • tulip

  • soybean

  • sun hemp

  • sun hemp

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Given below is a schematic break-up of the phase/stages of cell cycle



Which one of the following is the correct indication of the stage/phase in the cell cycle?

  • B -Metaphase

  • C-karyokinesis

  • D-Synthetic phase

  • D-Synthetic phase

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Which one of the following statement is true regarding digestion and absorption of food in humans?

  • Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

  • Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+

  • Chylomicrons are small Lipoprotein particles that are transported from the intestine into blood capillaries.

  • Chylomicrons are small Lipoprotein particles that are transported from the intestine into blood capillaries.

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Manganese is required in 

  • nucleic acid synthesis

  • plant cell wall formation

  • photolysis of water during photosynthesis

  • photolysis of water during photosynthesis

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